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With first principles calculations, we predict a novel stable 2D layered structure for group VI elements Se and Te that we call square selenene and square tellurene, respectively. They have chair-like buckled structures similar to other…

Mesoscale and Nanoscale Physics · Physics 2016-08-05 Lede Xian , Alejandro Pérez Paz , Elisabeth Bianco , Pulickel M. Ajayan , Angel Rubio

We have combined ab initio molecular dynamics with the intrinsic reaction coordinate in order to investigate the mechanisms of stability and pyrolysis of N$_{4}$-- N$_{120}$ fullerene-like nitrogen cages. The stability of the cages was…

Materials Science · Physics 2020-11-03 Konstantin Katin , Valeriy Merinov , Alexey Kochaev , Savas Kaya , Mikhail Maslov

We have carried out an extensive search for the SiC Bucky-diamond structure to confirm not only that a pair of Si and C atoms can form sp2- as well as sp3-type bonds but also that these two types of bonds can co-exist in the same SiC-based…

Materials Science · Physics 2011-08-25 Ming Yu , C. S. Jayanthi , S. Y. Wu

Sequential ionization of fullerene cluster ions (C$_{60}$)$_{n}^{+}$ within multiply-charged helium nanodroplets leads to the intriguing phenomenon of forming and stabilizing doubly- and triply-charged fullerene oligomers. Surprisingly, we…

Atomic and Molecular Clusters · Physics 2023-12-11 Lisa Ganner , Stefan Bergmeister , Lucas Lorenz , Milan Ončák , Paul Scheier , Elisabeth Gruber

Magnetism of fullerene C60 was studied by three methods of the density functional theory (DFT) calculation, laboratory experiment and astronomical observation. DFT revealed that the most stable spin state was non-magnetic one of Sz=0/2.…

Astrophysics of Galaxies · Physics 2021-11-02 Norio Ota , Aigen Li , Laszlo Nemes , Masaaki Otsuka

Stability and charge states of vacancy in Si$_{29}$ and Si$_{38}$ clusters have been calculated by non-conventional tight-binding method and molecular dynamics. Based on the theoretical calculations, it was shown that the vacancy in pure…

Soft Condensed Matter · Physics 2022-03-29 A. B. Normurodov , A. P. Mukhtarov , F. T. Umarova , M. Yu. Tashmetov , Sh. Makhkamov , N. T. Sulaymonov

According to microscopic calculations with antisymmetrized molecular dynamics, we studied cluster features in stable and unstable nuclei. A variety of structure was found in stable and unstable nuclei in the $p$-shell and $sd$-shell…

Nuclear Theory · Physics 2015-06-26 Y. Kanada-En'yo , M. Kimura , H. Horiuchi

We have found that Ce3Pd20As6 crystallizes into a cubic C6Cr23-type structure. Combination of electron probe microanalysis of the chemical composition and Rietveld analysis of the powder X-ray diffraction pattern has revealed an…

Strongly Correlated Electrons · Physics 2014-10-30 K. Orita , K. Uenishi , M. Tsubota , Y. Shimada , T. Onimaru , T. Takabatake , J. Kitagawa

Antimony telluroiodide (SbTeI) is predicted to be a promising material in many technological applications based on theoretical simulations, however the bulk structure solution remains elusive. We consolidate SbTeI belonging to the…

Systematic efforts to synthesise fullerene containing LCs have produced a variety of successful model compounds. We present a simple molecular theory relating the self-organisation observed in these systems to their molecular structure. The…

Soft Condensed Matter · Physics 2009-11-11 S. D. Peroukidis , A. G. Vanakaras , D. J. Photinos

Fullerenes, including \ce{C60} and \ce{C70}, have been detected in various astronomical environments. Understanding how their structures evolve over time is essential for gaining insights into their life cycle and making further…

Solar and Stellar Astrophysics · Physics 2023-10-27 Zhisen Meng , Zhao Wang

The current paper presents the second part of the study devoted to composites formed by fullerene C60 and single-walled carbon nanotube ([C60-(4,4)] carbon nanobud). The formation of composites is considered from the basic points related to…

Materials Science · Physics 2011-06-06 E. F. Sheka , L. Kh. Shaymardanova

Simple cubic structure with one atom in the unit cell found in compressed calcium is contrintuitive with regards to traditional view on tendency of transition to densely packed structures on the increase of pressure. To understand this…

Materials Science · Physics 2013-10-22 Valentina F Degtyareva

The emergence of CsCl bulk structure in (CsCl)nCs+ cluster ions is investigated using a mixed quantum-mechanical/semiempirical theoretical approach. We find that rhombic dodecahedral fragments (with bulk CsCl symmetry) are more stable than…

Atomic and Molecular Clusters · Physics 2009-11-06 Andres Aguado

We demonstrate that by combining two robust theoretical quantum chemistry calculation techniques, stepwise ionization of C60 fullerene by UV and extreme UV photons can in principle occur up to a limit as high as q=+26 before coulomb…

Astrophysics of Galaxies · Physics 2021-01-20 SeyedAbdolreza Sadjadi , Quentin Andrew Parker

In the early 90s, C60+ was proposed as the carrier of two diffuse interstellar bands (DIBs) at 957.7 and 963.2 nm, but a firm identification still awaits gas-phase spectroscopic data. Neutral C60, on the other hand, was recently detected…

Astrophysics of Galaxies · Physics 2015-06-16 Olivier Berné , Giacomo Mulas , Christine Joblin

In this article, we present our results on bilayers assembled upon strategic placement of Cd$_6$Se$_6$ clusters. These bilayers are studied for their stability and electronic structure with the help of density functional theory and are…

Materials Science · Physics 2020-01-08 Deepashri Saraf , Anjali Kshirsagar

The first detection of the C60 (Buckminsterfullerene) molecule in massive embedded young stellar objects (YSOs) is reported. Observations with Spitzer IRS reveal the presence of C60 in YSOs ISOGAL-P J174639.6-284126 and SSTGC 372630 in the…

Astrophysics of Galaxies · Physics 2015-12-01 Kyle R. G. Roberts , Keith T. Smith , Peter J. Sarre

On the basis of a topological discussion as well as an {\it ab initio} calculation, we show that it is possible to construct a fullerene-like Si cage by doping of a transition metal atom. The cage is a simple 3-polytope which maximizes the…

Materials Science · Physics 2009-11-07 Takehide Miyazaki , Hidefumi Hiura , Toshihiko Kanayama

The encapsulation of hydrogen within fullerene/fullerane cages offers a promising avenue for studying high pressure hydrogen dynamics. Through ab initio molecular dynamics simulations, we investigate the behavior of a system consisting of…

Materials Science · Physics 2025-02-11 Leonard Constantin Gebac , Vasile Bercu
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